diff --git a/scripts/target/mame/mess.lua b/scripts/target/mame/mess.lua
index 4e551d71555..9d8b29e1c49 100644
--- a/scripts/target/mame/mess.lua
+++ b/scripts/target/mame/mess.lua
@@ -4191,6 +4191,7 @@ files {
 createMESSProjects(_target, _subtarget, "yamaha")
 files {
 	MAME_DIR .. "src/mame/machine/mulcd.cpp",
+	MAME_DIR .. "src/mame/drivers/ymdx11.cpp",
 	MAME_DIR .. "src/mame/drivers/ymmu50.cpp",
 	MAME_DIR .. "src/mame/drivers/ymmu80.cpp",
 	MAME_DIR .. "src/mame/drivers/ymmu100.cpp",
diff --git a/src/mame/drivers/ymdx11.cpp b/src/mame/drivers/ymdx11.cpp
new file mode 100644
index 00000000000..0de96879f69
--- /dev/null
+++ b/src/mame/drivers/ymdx11.cpp
@@ -0,0 +1,136 @@
+// license:BSD-3-Clause
+// copyright-holders:AJR
+/****************************************************************************
+
+    Skeleton driver for Yamaha DX11 synthesizer.
+
+****************************************************************************/
+
+#include "emu.h"
+//#include "bus/midi/midi.h"
+#include "cpu/m6800/m6801.h"
+#include "machine/adc0808.h"
+#include "machine/nvram.h"
+#include "sound/ym2151.h"
+#include "video/hd44780.h"
+#include "emupal.h"
+#include "screen.h"
+#include "speaker.h"
+
+class yamaha_dx11_state : public driver_device
+{
+public:
+	yamaha_dx11_state(const machine_config &mconfig, device_type type, const char *tag)
+		: driver_device(mconfig, type, tag)
+		, m_maincpu(*this, "maincpu")
+		, m_subcpu(*this, "subcpu")
+		, m_adc(*this, "adc")
+		, m_rombank(*this, "rombank")
+	{
+	}
+
+	void dx11(machine_config &config);
+
+protected:
+	virtual void machine_start() override;
+
+private:
+	HD44780_PIXEL_UPDATE(lcd_pixel_update);
+	void palette_init(palette_device &palette);
+
+	void cartridge_bank_w(u8 data);
+
+	void main_map(address_map &map);
+
+	required_device<hd6301y_cpu_device> m_maincpu;
+	required_device<hd6301y_cpu_device> m_subcpu;
+	required_device<adc0808_device> m_adc;
+	required_memory_bank m_rombank;
+};
+
+void yamaha_dx11_state::machine_start()
+{
+	m_rombank->configure_entries(0, 2, memregion("firmware")->base(), 0x8000);
+}
+
+
+HD44780_PIXEL_UPDATE(yamaha_dx11_state::lcd_pixel_update)
+{
+	if (x < 5 && y < 8 && line < 2 && pos < 16)
+		bitmap.pix16(line * 8 + y, pos * 6 + x) = state;
+}
+
+void yamaha_dx11_state::palette_init(palette_device &palette)
+{
+	palette.set_pen_color(0, rgb_t(131, 136, 139));
+	palette.set_pen_color(1, rgb_t( 92,  83,  88));
+}
+
+
+void yamaha_dx11_state::cartridge_bank_w(u8 data)
+{
+}
+
+void yamaha_dx11_state::main_map(address_map &map)
+{
+	map(0x0000, 0x0027).m(m_maincpu, FUNC(hd6301y_cpu_device::hd6301y_io));
+	map(0x0040, 0x013f).ram();
+	map(0x1400, 0x1400).mirror(0x3ff).w(FUNC(yamaha_dx11_state::cartridge_bank_w));
+	map(0x1800, 0x1801).mirror(0x3fe).rw("opz", FUNC(ym2414_device::read), FUNC(ym2414_device::write));
+	map(0x1c00, 0x1c01).mirror(0x3fe).rw("lcdc", FUNC(hd44780_device::read), FUNC(hd44780_device::write));
+	map(0x2000, 0x3fff).ram().share("ram1");
+	map(0x4000, 0x5fff).ram().share("ram2");
+	//map(0x6000, 0x7fff).rw(FUNC(yamaha_dx11_state::cartridge_r), FUNC(yamaha_dx11_state::cartridge_w));
+	map(0x8000, 0xffff).bankr("rombank");
+}
+
+
+static INPUT_PORTS_START(dx11)
+INPUT_PORTS_END
+
+void yamaha_dx11_state::dx11(machine_config &config)
+{
+	HD6303Y(config, m_maincpu, 8_MHz_XTAL); // HD63B03YP-N
+	m_maincpu->set_addrmap(AS_PROGRAM, &yamaha_dx11_state::main_map);
+	m_maincpu->out_p2_cb().set_membank("rombank").bit(6);
+
+	HD6301Y0(config, m_subcpu, 8_MHz_XTAL).set_disable(); // HD63B01Y0D60P
+
+	NVRAM(config, "ram1", nvram_device::DEFAULT_ALL_0); // TC5564APL-15 + lithium battery
+	NVRAM(config, "ram2", nvram_device::DEFAULT_ALL_0); // TC5564APL-15 + lithium battery
+
+	M58990(config, m_adc, 8_MHz_XTAL / 16); // M58990P-1; divider not verified (actually clocked by P26 output of sub CPU)
+
+	screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_LCD));
+	screen.set_color(rgb_t::green());
+	screen.set_refresh_hz(60);
+	screen.set_vblank_time(ATTOSECONDS_IN_USEC(2500)); /* not accurate */
+	screen.set_screen_update("lcdc", FUNC(hd44780_device::screen_update));
+	screen.set_size(6*16, 8*2);
+	screen.set_visarea_full();
+	screen.set_palette("palette");
+
+	PALETTE(config, "palette", FUNC(yamaha_dx11_state::palette_init), 2);
+
+	hd44780_device &lcdc(HD44780(config, "lcdc", 0));
+	lcdc.set_lcd_size(2, 16);
+	lcdc.set_pixel_update_cb(FUNC(yamaha_dx11_state::lcd_pixel_update));
+
+	SPEAKER(config, "lspeaker").front_left();
+	SPEAKER(config, "rspeaker").front_right();
+
+	ym2414_device &opz(YM2414(config, "opz", 3.579545_MHz_XTAL));
+	//opz.irq_handler().set_inputline(m_maincpu, hd6301y_cpu_device::IRQ2_LINE); // IRQ = P51
+	opz.add_route(0, "lspeaker", 0.60);
+	opz.add_route(1, "rspeaker", 0.60);
+}
+
+ROM_START(dx11)
+	ROM_REGION(0x10000, "firmware", 0)
+	ROM_LOAD("dx11_xd820_bo.ic15", 0x00000, 0x10000, CRC(d5355df7) SHA1(a5376c32fcce9e93a22b71ec476b14ff3091153f)) // 27C512
+
+	ROM_REGION(0x4000, "subcpu", 0)
+	ROM_LOAD("hd63b01y0d60p.ic18", 0x0000, 0x4000, NO_DUMP)
+ROM_END
+
+SYST(1988, dx11, 0, 0, dx11, dx11, yamaha_dx11_state, empty_init, "Yamaha", "DX11 Digital Programmable Algorithm Synthesizer", MACHINE_IS_SKELETON)
diff --git a/src/mame/mame.lst b/src/mame/mame.lst
index 2568fa3389c..bf6d6497107 100644
--- a/src/mame/mame.lst
+++ b/src/mame/mame.lst
@@ -41839,6 +41839,9 @@ kof2002umj                      // (c)2009 SNK Playmore / New Channel
 yiear                           // GX407 (c) 1985
 yiear2                          // GX407 (c) 1985
 
+@source:ymdx11.cpp
+dx11                            //
+
 @source:ymmu50.cpp
 mu50                            // 1995 MU-50
 
diff --git a/src/mame/mess.flt b/src/mame/mess.flt
index 5f145e2fa93..68d44553046 100644
--- a/src/mame/mess.flt
+++ b/src/mame/mess.flt
@@ -1085,6 +1085,7 @@ xbase09.cpp
 xbox.cpp
 xerox820.cpp
 xor100.cpp
+ymdx11.cpp
 ymmu100.cpp
 ymmu50.cpp
 ymmu80.cpp